Hood for propeller-wheels.



G. B. DAVIS. HOOD FOR PROPELLER WHEELS.

APPLICATION IILBD JAN. 17, 1908.

Patented Nov. 17, 1908.

$4M.) cwtoz 61 0219492 2a 0Z4 w vtmeoom .I do declare the followinghoods for screw propellers.

GEORGE B. DAVIS, 0F DAWSON, YUKON TERRITORY, CANADA.

HOOD FOR PROPELLER-WHIEELB.

Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed January 17, 1908. Serial No. 411,212.

To all 'whom it may concern:

Be it known that I, Gnoncn B. DAVIS, a

citizen of the United States, residing at Dawson, Yukon Territor Canada,have invented certain new an useful Improvements in Hoods forPropeller-Wheels; and to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in The object of the invention isto provide a hood or funnel for propellers whereby the same may be usedin shoal water.

Wlth this objectin view, the invention consists of certain novelfeatures of construction, combination and arrangement of parts as willbe more fully described and particularly pointed out in the appendedclaims. 1

In-the accompanying drawing, Figure 1 1s a sideview of the stern end ofa boat, showmg the application of the invention thereto; Fig. 2 1s asimilar view, showing the hood in section; and Fig. -3is a rear endview.-

Referring'more particularly to the-draw lugs, 1 denotes the hood, whichis preferab y formed of sheet metal and is adapted to be constructed inany suitable shape, such as cylindrical, half-round, oval, square,triangular and tapering or funnel-shaped, or provided with straightsides, the same being shown in the resent instance as beingsubstantially hal -round or semi-cylindrical at its outer endand havingits sides and lower ed s tapering slightly toward the inner end? Thehood is adapted to be arranged over the upper side of the propellerwheel and to pro ect rearwardly of the same and also to a slightdistance ahead of the wheel .beneath the stern end of the boat, asshown.

The hood is adjustably supported in position by avertically dis osedsupporting bar, 2,

arranged in suitab e bearings, 3, secured to the stern of the boat, asshown. The lower end of the bar, 2, is bifurcated to form divergingsupportin plates, 4, which straddle e upper side of t e hood and arepivotally connected thereto at their lower ends.

On the bar, 2, is slidably mounted a collar, 5, which is ada ted to beadjustably secured to the bar, 2, by means of a set-screw 6, said collarforming a stop adapted to be connected with the upper bearing, 3, on thestern of the boat, whereby the hood is adj ustably supported and held inposition over .the propeller wheel. On .the upper side of the hood,adjacent to the rear end thereof,

is formed a centrally disposed upwardly projecting fin, 7, with which ispivotally connected the lower end of an inclined brace bar, 8, the upperinner end of which is pivotally connected to an apertured lug, 9, on

the collar 5. The brace bar 8 is adapted to steady and steer the rearend of the hood, and together with the fin 7 is adapted to hold the hoodin line with the center of the propeller wheel when drawn through thewater. Byloosening the set screw, 6, in the collar, 5, the supportingbar, 2', may be raised or lowered to adjust the hood to the desiredposition over the propeller wheel.

- Ifdesired, the hood may be connected with the rudder soethat it willaid in the steering of the vessel and the operation of the wheel bytaking water from under the vessel or from either side.

Having thus fully described my invention, what I claim as new and desireto secure by Letters-Patent, is:

1. In a hood for propeller wheels, a supporting bar having a pivotalengagement at its lower endwith the hood, and means connected to saidsupporting bar and hood to steady the rear end of the latter,substantially as described.

2. In a hood for propeller wheels, a supporting bar pivotally connectedat its lower end to said hood,.means to adjustably secure the bar to theend of the vessel, a brace pivotally connected at one end to the outerend of the hood, and means whereb the 0p osite end of said brace isconnecte to sai supporting bar, substantially as described.

3. A hood for propeller wheels adapted to be arranged over the same, asupporting. bar bifurcated at its lower end and ada ted to be pivotallyconnected to saidhood a 'acent to its inner end, a stop collar arrangeon said bar to adjustably secure the same to the stern of the vessel,and means to support and guide the outer end of the hood, substantiallyas described.

4. A hood for propeller wheels adapted to be arranged over the same, asu porting bar bifurcated at its lower end an adapted to be pivotallyconnected to said hood a jacent to 1ts inner end, a stop collar arrangedon said bar to adjustably secure the same to the tudinal upwardliyprojecting fin arranged on the upper side 0 said hood, and. 'an ob(uely. disposed brace ada ted to connect sai fin end pivotally stern ofa vessel, a centrally disposed longiwith said stop co ar, substantiallyas described.

5. A hood for propeller wheels comprising a longitudinally disposedcurved plate, the sides of which ta er toward its inner end, asupporting bar aving a bifurcated lower connected to said hood adjacentto its inner end, bearings arranged on the stern of the vessel toreceive said bar, a stop collar arranged on the latter above said becamebearings, a set screw to hold said collar in adjusted position onsaid-bar,

osed longitudinal upwardly projecting fin an obliquely disposed brace"adapted to connect said fin with said collar, substantially asdescribed. Y

In testimony whereof I have hereunto vset my hand in presence of twosubscribing wita centrally disormed on the rear portion of said hood,and v

